Use this URL to cite or link to this record in EThOS: | https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.712749 |
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Title: | Development and implementation of quadratically distorted (QD) grating and grisms system for 4D multi-colour microscopy imaging (MCMI) | ||||||
Author: | Feng, Yan |
ISNI:
0000 0004 2361 3192
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Awarding Body: | Heriot-Watt University | ||||||
Current Institution: | Heriot-Watt University | ||||||
Date of Award: | 2016 | ||||||
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Abstract: | |||||||
The recent emergence of super-resolution microscopy imaging techniques has surpassed the diffraction limit to improve image resolution. Contrary to the breakthroughs of spatial resolution, high temporal resolution remains a challenge. This dissertation demonstrates a simple, on axis, 4D (3D + time) multi-colour microscopy imaging (MCMI) technology that delivers simultaneous 3D broadband imaging over cellular volumes, which is especially applicable to the real-time imaging of fast moving biospecimens. Quadratically distorted (QD) grating, in the form of an off axis-Fresnel zone plate, images multiple object planes simultaneously on a single image plane. A delicate mathematical model of 2D QD grating has been established and implemented in the design and optimization of QD grating. Grism, a blazed grating and prism combination, achieves chromatic control in the 4D multi-plane imaging. A pair of grisms, whose separation can be varied, provide a collimated beam with a tuneable chromatic shear from a collimated polychromatic input. The optical system based on QD grating and grisms has been simply appended to the camera port of a commercial microscope, and a few bioimaging tests have been performed, i.e. the 4D chromatically corrected imaging of fluorescence microspheres, MCF-7 and HeLa cells. Further investigation of bioimaging problems is still in progress.
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Supervisor: | Greenaway, Alan ; Shu, William | Sponsor: | Not available | ||||
Qualification Name: | Thesis (Ph.D.) | Qualification Level: | Doctoral | ||||
EThOS ID: | uk.bl.ethos.712749 | DOI: | Not available | ||||
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